Home / 2,562.80-3,844.20-1,103.60

Finding the Fourth Proportional to 2,562.80, 3,844.20 and 1,103.60

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Solution

The fourth proportional to 2,562.80, 3,844.20 and 1,103.60 is: 1,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.80 : 3,844.20 = 1,103.60 : x
  2. Step 2: Convert to fraction form
    2,562.80/3,844.20 = 1,103.60/x
  3. Step 3: Cross multiply
    2,562.80x = 3,844.20 × 1,103.60
  4. Step 4: Simplify right side
    2,562.80x = 4,242,459.12
  5. Step 5: Solve for x
    x = 4,242,459.12/2,562.80
  6. Step 6: Final answer
    x = 1,655.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.